<div class="button medium success">成功按钮</div>
<div class="button small success">成功按钮</div>
<div class="button large medium success">成功按钮</div>
<div class="button medium success">成功按钮</div>
<div class="button medium">默认按钮</div>
<div class="button medium secondary">默认按钮</div>
<div class="button medium alert">警告按钮</div>